<template>
	<view class="main cu-form-group">
		<slot></slot>
		<view class="input" @click="showModal">
			<!-- <input v-model="_value" :placeholder="placeholder" realony style="padding-right: 0;font-size: 28rpx;" /> -->
			<view :class="{placeholder:!_value}">{{_value || placeholder}}</view>
			<text class="wlIcon-fanhui2" v-if="showArrow"></text>
		</view>
		<view class="select-modal" :class="isShowModal ? 'show' : ''" @tap="hideModal">
			<view class="select-dialog" @tap.stop="" :style="{ backgroundColor: bgColor }">
				<view class="title-main">
					<text class="title-detail">{{ title }}</text>
				</view>

				<view class="search-box" v-if="showSearch">
					<u-search placeholder="输入内容进行模糊查询" v-model="searchInput" @search="handleSearch"></u-search>
				</view>
				<view class="select-content">
					<view class="select-item" v-for="(item, index) in list" :key="index" :style=" valueIndexOf(item) ? 'color:' + selectColor + ';background-color:' + selectBgColor + ';' : 'color:' + color + ';' " @click="select(item)">
						<view class="title">{{ getLabelKeyValue(item) }}</view>
						<text class="selectIcon icongou" v-if="valueIndexOf(item)"></text>
					</view>
				</view>
				<view class="select-bar bg-white" v-if="multiple">
					<button plain="true" class="mini-btn action" type="default" size="default" @tap="empty">
						{{ emptyText }}
					</button>
					<button class="mini-btn action" type="primary" size="default" @tap="confirmClick">
						{{ confirmText }}
					</button>
				</view>
			</view>
		</view>
	</view>
</template>

<script>
	export default {
		name: 'wanlSelect',
		data() {
			return {
				isShowModal: false,
				searchInput: '',
				options: [],
			}
		},
		props: {
			showSearch: {
				// 是否显示搜索框
				type: Boolean,
				default: false,
			},
			value: {
				type: [Number, String, Array, Object],
				default: null,
			},
			placeholder: {
				// 占位符
				default: '',
				type: String,
			},
			multiple: {
				// 是否多选
				default: false,
				type: Boolean,
			},
			list: {
				default: () => [],
				type: Array,
			},
			valueKey: {
				// 指定list中valueKey的值作为下拉框绑定内容
				default: 'value',
				type: String,
			},
			labelKey: {
				// 指定list中labelKey的值作为下拉框显示内容
				default: 'label',
				type: String,
			},
			disabled: {
				default: false,
				type: Boolean,
			},
			clearable: {
				default: false,
				type: Boolean,
			},
			emptyText: {
				default: '重置',
				type: String,
			},
			title: {
				default: '选择内容',
				type: String,
			},
			confirmText: {
				default: '确定',
				type: String,
			},
			color: {
				default: '#000000',
				type: String,
			},
			selectColor: {
				default: '#4CBD66',
				type: String,
			},
			bgColor: {
				default: '#ffffff',
				type: String,
			},
			selectBgColor: {
				default: '#FFFFFF',
				type: String,
			},
			valueType: {
				default: 'single',
				type: String, // single || all
			},
			showSearchBtn: {
				default: true,
				type: Boolean, // single || all
			},
			showArrow: {
				type: Boolean,
				default: true,
			}
		},
		emits: ['openDeepScroll', 'closeDeepScroll'],
		computed: {
			_value: {
				get() {
					return this.get_value(this.value)
				},
				set(val) {
					this.$emit('input', val)
				},
			},
		},
		created() {},
		methods: {
			handleSearch() {
				this.$emit('search', this.searchInput)
			},
			get_value(val) {
				// 将数组值转换为以,隔开的字符串
				if (val || val === 0) {
					if (Array.isArray(val)) {
						let chooseAttr = []
						val.forEach((item) => {
							let choose = this.list.find((temp) => {
								let val_val = this.getValueKeyValue(temp)
								return item === val_val
							})
							// 判断是否存在
							if (choose) {
								chooseAttr.push(choose)
							}
						})
						let values = ''
						if (chooseAttr.length > 0) {
							values = chooseAttr
								.map((temp) => this.getLabelKeyValue(temp))
								.join(',')
						}

						return values
					} else {
						let choose = this.list.find((temp) => {
							let val_val = this.getValueKeyValue(temp)
							return val === val_val
						})
						if (choose) {
							return this.getLabelKeyValue(choose)
						} else {
							return val
						}
					}
				} else {
					return ''
				}
			},
			select(item) {
				// 点击选项
				let val = this.getValueKeyValue(item)
				if (this.multiple) {
					let _value = this.value || []
					let index = _value ? _value.indexOf(val) : -1
					console.log(index,_value)
					if (index != -1) {
						_value.splice(index, 1)
						this.options.splice(index, 1)
						this.$emit('input', _value)
					} else {
						_value.push(val)
						this.options.push(item)
						this.$emit('input', _value)
					}
					this.$emit('change', _value)
				} else {
					let label = this.getLabelKeyValue(item)
					if (this._value) {
						if (label.indexOf(this._value) !== -1) {
							this.$emit('input', '')
						} else {
							this.$emit('input', val)
						}
					} else {
						this.$emit('input', val)
					}

					// 单选选中的当前项所有
					this.$emit('change', item)
					this.hideModal()
				}
			},
			valueIndexOf(item) {
				let val = this.getValueKeyValue(item)
				if (Array.isArray(this.value)) {
					return this.value.indexOf(val) != -1
				} else {
					return this.value === val
				}
			},
			getLabelKeyValue(item) {
				// 获取label
				return item[this.labelKey]
			},
			getValueKeyValue(item) {
				// 获取value
				return item[this.valueKey]
			},
			empty() {
				// 清空
				if (this.multiple) {
					this.$emit('change', [])
					this.$emit('input', [])
				} else {
					this.$emit('change', '')
					this.$emit('input', '')
				}
			},
			// cancelClick() {
			//   // 点击取消
			//   this.$emit('cancel', this._value)
			//   this.hideModal()
			// },
			confirmClick() {
				// 点击确定
				if (this.valueType === 'all') {
					this.$emit('confirm', this.options,this.value)
				} else {
					this.$emit('confirm', this._value)
				}
				this.hideModal()
			},
			showModal() {
				// 显示model
				if (!this.disabled) {
					this.isShowModal = true
					// 打开禁止穿透滚动
					this.$emit('openDeepScroll')
				}
			},
			hideModal() {
				// 隐藏model
				this.isShowModal = false
				// 关闭禁止穿透滚动
				this.$emit('closeDeepScroll')
			},
		},
		watch: {
			searchInput(val) {
				if (!this.$props.showSearchBtn) this.$emit('search', val)
			},
		},
	}
</script>
<style>
	@font-face {
		font-family: 'selectIcon';
		src: url('//at.alicdn.com/t/font_1833441_ycfzdhg2u3.eot?t=1590375117208');
		/* IE9 */
		src: url('//at.alicdn.com/t/font_1833441_ycfzdhg2u3.eot?t=1590375117208#iefix') format('embedded-opentype'),
			/* IE6-IE8 */
			url('data:application/x-font-woff2;charset=utf-8;base64,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') format('woff2'),
			url('//at.alicdn.com/t/font_1833441_ycfzdhg2u3.woff?t=1590375117208') format('woff'),
			url('//at.alicdn.com/t/font_1833441_ycfzdhg2u3.ttf?t=1590375117208') format('truetype'),
			/* chrome, firefox, opera, Safari, Android, iOS 4.2+ */
			url('//at.alicdn.com/t/font_1833441_ycfzdhg2u3.svg?t=1590375117208#selectIcon') format('svg');
		/* iOS 4.1- */
	}

	.title-main {
		display: flex;
		justify-content: center;
		width: 100%;
	}

	.title-detail {
		display: flex;
		width: 88%;
		justify-content: center;
		padding: 30rpx 0;
		/*  border-bottom: 1rpx solid #e6e1e1; */
		font-size: 30rpx;
	}

	.selectIcon {
		font-family: 'selectIcon' !important;
		font-size: 16px;
		font-style: normal;
		-webkit-font-smoothing: antialiased;
		-moz-osx-font-smoothing: grayscale;
	}

	.icongou:before {
		content: '\e61c';
	}

	.iconcross:before {
		content: '\e61a';
	}
</style>
<style lang="scss" scoped>
	.bg-white {
		background-color: #ffffff;
	}

	.input {
		display: flex;
		align-items: center;
		// font-size: 28rpx;
		// height: 60rpx;
		// padding: 10rpx 20rpx;
		// border-radius: 10rpx;
		// border-style: solid;
		// border-width: 1rpx;
		// border-color: rgba(0, 0, 0, 0.1);

		input {
			flex: 1;
			text-align: right;
			color: #333333;
		}

		.selector-icon {
			width: 32rpx;
			height: 36rpx;
			vertical-align: middle;
		}
	}

	.select-modal {
		position: fixed;
		top: 0;
		right: 0;
		bottom: 0;
		left: 0;
		z-index: 9999;
		opacity: 0;
		outline: 0;
		text-align: center;
		-ms-transform: scale(1.185);
		transform: scale(1.185);
		backface-visibility: hidden;
		perspective: 2000rpx;
		background: rgba(0, 0, 0, 0.6);
		transition: all 0.3s ease-in-out 0s;
		pointer-events: none;
		margin-bottom: -1000rpx;

		&::before {
			content: '\200B';
			display: inline-block;
			height: 100%;
			vertical-align: bottom;
		}

		.select-dialog {
			position: absolute;
			left: 0;
			bottom: 0;
			display: inline-block;
			margin-left: auto;
			margin-right: auto;
			background-color: #f8f8f8;
			overflow: hidden;
			width: 100%;
			border-radius: 20rpx 20rpx 0 0;

			.select-content {
				// background-color: #F1F1F1;
				height: 60vh;
				overflow: auto;
				padding: 0 30rpx;

				.select-item {
					text-align: left;
					padding: 20rpx 0;
					display: flex;
					border-bottom: 1px solid #eee;
					&:last-child {
						border: none;
					}
					.title {
						flex: 1;
					}
				}
			}
		}
	}

	.select-modal.show {
		opacity: 1;
		transition-duration: 0.3s;
		-ms-transform: scale(1);
		transform: scale(1);
		overflow-x: hidden;
		overflow-y: auto;
		pointer-events: auto;
		margin-bottom: 0;
	}

	.select-bar {
		padding: 0 80rpx;
		display: flex;
		position: relative;
		align-items: center;
		min-height: 80rpx;
		justify-content: space-between;
		margin-bottom: 50rpx;

		.action {
			display: flex;
			align-items: center;
			height: 78rpx;
			justify-content: center;
			max-width: 100%;
			padding: 0 100rpx;
		}
	}

	.search-box {
		display: flex;
		align-items: center;
		padding: 0 30rpx;
	}

	.search-input {
		display: flex;
		flex: 1;
		// width: 560rpx;
		height: 67rpx;
		line-height: 67rpx;
		border-radius: 10rpx;
		background: #f5f2f2;
	}

	.search-text {
		padding-left: 30rpx;
	}
	.wlIcon-fanhui2 {
		font-size: 22rpx;
		margin-left: 6rpx;
	}
</style>